Gauge for checking the positions of parts mounted on the inner peripheries of cylindrical articles



May 17, 1949. E. c. Moss 2,470,635

GAUGE FOR CHECKING THE POSITIONS OF PARTS MOUNTED ON THE INNER PERIPHERIES OF CYLINDRICAL ARTICLES Filed July 10, 1946 2 Sheets-Sheet 1 INVENTOR E .C. M055 A T TORNEY y 7, 1949. E. c. MOSS 2,470,635

7 GAUGE FOR CHECKING THE POSITIONS OF PARTS MOUNTED ON THE INNER PERIPHERIES OF CYLINDRICAL ARTICLES Filed July 10, 1946 2 Sheets-Sheet 2 INVENTOI? EC. MOSS A T TORNE Y Patented May 17, 1949 t. BARTS- M UNT D,

This invention relatesto gages. and'more particularly-cto gages for checking the positions cf: parts mounted: on the peripheries of cylin's. drical articles. with respect; tog givenpositionsradially of the centerlinos ofthaarticlesi In the. manufacture f *VaI i011S-- kiI1dS of apparatus and equipment, it is necessar-y: to check the alignment on relationship ofvariousv pants. withrespect to given positions to avhigh degree, of accuracy. When the-parts are to; function efiiciently with units subsequently: assembled: within the cylindrical article;. thermounting :cf-J these parts wit-him predetermined limits .of \given position is important: i. ii. An object of the inventionis to provide a. gage which is simple inystructure andhighly efficient for. checkingitheposition oft a part mounted'ion the inner periphery ofiai cylindrical varticlewith! respect toa given radialepositiom fromctheiceni terlineofthearticler Z- i? M1 i 1 Owing-to the fact that the partbeing gaged; is..not of sugtiicient size or length toiaaccuratelyr check its position with respect to the centenline; of. thercylindnical artiele in. :which wit. .is mounteda bardstsecuredz-totthe.pa1\t by a; chuck, the chuck assuring. accurate alignment ofithe: bar with; the: part; i A- support: in the form of? a shaft; istmoun-ted. Avithiitsi center-line; coinciding with the centerline; Qfithfi': article. vAim-arm; is movable inwa. guided-r pathi'ongthe support. nelativerto the: bar; andthasacgaging surface; lyin in: a plane parallelrwithi a; nezfierehcer p ane o the Bart in-thei g ven "position :desired fort the; part. to engageathe bar; Meansin: therformiofr ameasr m element. ccoopeliates withthe aa ingesu face and-the bar; when the surface is; moved; to enga em nt, 1 with 17h8sbar; to indicate whetherior:nct thflflpflrt isawithin, predetermined, limits of: the; said; given pQsition-w O-ther.;g?' ing features includei; spacedw gaging members; carried by the arm: at; the gaging; surface-to receive vthe bar th r tw en ifi them tt; is w thin predetermineddimits of, the. said i; given: position.

Qther objectyand;:advantagesgwi11- be;= apnflil ent from the ifollowingq detailed description when considered. in conjunction withtthe accempanying drawings whereinq a .i at i I Fig. 1.is ar-frontwelevational view ofthe ease in position to ,-..check.-spaced parts oi: ani artiqle;

Fig.- 2. is a,.-side:. elevational view pf'a; struc- -r qriiiiiiati nq w i c. "Ap iieatiiiiiiiiy M1946; Serial No. 682,674

aciai'nis'... (Cl. 334st) v 0 H L NNE ITE I H V Q AL; BHQLE L 1 Earl 0; Moss, Westfiel'd, N. J2, assignor to Western ec i'csgomnanr e i mmra edfl New Xork,

In the present embodiment the structure be-- ing gagedincludes like-parts l 0 mounted at selected positions on theinner periphery of acylindrical article l l'.

locations with respect to given' positions extending at predeterminedlimits radially from the centerline of the article H. Forthis reason bars 12 are secured to the parts Ii] throughjthe aid of chucks M, The chunks; Iii-have resilient jaws |5-" which are closed unif ormlyon theyparts l-O as thechuck is closed thrpugh rotation of the outer shell IS onthe threaded portion H of the bar 12; With this structure, the barsact asextensions for the partsylll.

A support 2fl in theferm-of a shaft is mounted by suitable mean (not shown) sothat itscenterline coincideswiththe centerline; of the articlel=-I-. -A slideor carriage: 2| having a U- shaped portion 22 with a concaved recess 23, partially conforming to the support -29; is removablydisposed onthesupport. A" gate 24, hinged at 25 to one leg of the-member 22 and having concavedrecesses- 26' nearits- -centerto partially conform tothe support 20'; is held inclosed position by a latch 21+-The latch 2! has a threaded shank 28 receivable in -a threaded aperture of the lower legat the member 22 while thehead of the latch, when in the upper" position holds the gate in closed position, thelatch freeingthegatewhen in the dotted position shown in Fig. 2. i i i i i Theslide H is guided in its movement on the support, as-it advances toward the parts-H1:

and.& I i, by a projection 3U 'carried by thesupport' 20 receivable in a i longitudinally extending-slot 31 in the-slider I i I i I it A sleeve 32 integral: with the member 22 of:=

the slide receives--a-pin 34 -he1d ina-selectedf position by ascrew -35-ycarried by 1 the sleeve and havin its reduced innerendi receivable ina longitudinal. groove 36 of-the pin :34. A bracket 3Tis mounted upon the upper end of the pin'and' a gagearm, 33i5 fixedtothe bracket 31; Thearm. 38, has portion 40 with 4 gaging surfaces 4| which; lie in, likeplanes parallel with the givenpositions or .planeswhereinthe centerlin-es oftheuparts-l-lll are. expected; to-be positioned. mounted inthe 5 positions; specified, the cylindrical :bars; 12 being; in; alignment with the parts n acting strue extensions of .the partswoiild be vengaged for; the;imajoregportions; of, c their 56 lengthsby; both: gaging. ;snrfaces:-.4 i- .upon. move- The parts H1 are not i of sufiicient size toaccurately determine their If the parts, v l0 tare *accurately 3 ment of the arm with the slide into the gaging position.

In the present embodiment certain tolerances, that is, variations in the mounting of the parts with respect to the said given radial positions are permissible. To determine whether or not the parts are within the given limits, an element 43 having a handle 45 and a gaging portion 44 may be directed toward any space existing between the .bar I2 and the gaging surface 4|. If the part l and its respective bar l2 extend at an angle with respect to the gagin surface 4| and with respect to the said given position, one point of the bar will engage its surface 4|, the other portions of the bar extending away from the surface in the angle the part l0 varies from the given radial position. The gagin portion 44 of the element 43 is machined to a given thickness immediately greater than the distance allowed between the bar l2 and the surface 4|. If the gaging portion 44 of the element 43 is receivable between the bar l2 and its gaging surface 4| at any of the spaced positions from the contact point, the part is not within given limits in this one gaging feature.

With the structure thus far described, approximately half of the check has been made to determine the positions of the parts Hi. To complete gaging of the parts, gaging members 47, in the form of hardened sleeves with flattened surfaces 48 parallel with each other, are mounted upon the portions 40 of the arm by pins as in positions perpendicular to the gaging surfaces 4|. The surfaces 43 of the gaging members are spaced distances slightly greater than the diameters of the bars l2 to receive the bars between their respective gaging members if the positions of the bars are within predetermined limits of the said given positions. This completes the gage.

During gaging of the parts, the bars I2 are secured to their respective parts l0 while the slide 2| with its associated structure is positioned at an out-of-the-way location. After the chucks M are closed tightly on the parts In, the slide 2| may be moved into a position, where it is guided by the projection 30 receivable in the notch 3|, and moved until it is stopped by the bars I2. If the bars fail to enter the space between the surfaces 48 of the gaging members 41, the operator is assured that the parts are not mounted within the given limits required in a direction circumferentially of the cylinder. The bars may enter the gaging position between the members, and if the bars l2 engage the gaging surfaces 4| throughout the major portions of their lengths, the operator is assured that the parts I!) are within the desired positions. It is possible, however, that the bars controlled by the parts are disposed at angles with respect to their gaging surfaces 4|. In one instance, the bar may engage the top edge of its gaging surface, while the other bar may engage the gaging surface near its lower end. In either instance, the gaging element 43 is employed in cooperation with the bars l2 and their gaging surfaces to indicate whether or not the angular positions of the bars l2 and parts I0 are within limits required from the said given positions in a direction axially of the cylinder.

If either one of the parts being gaged should prove to be in a defective position, in either direction, as determined by the gaging members 41 or gaging surface 4| and element 43, suitable means may be provided to correct this part and 4 through the aid of its chuck and bar it may be gaged a second time to determine whether or not its position has been corrected.

Although specific improvements of the invention have been shown and described, it will be understood that they are but illustrative and that various modifications may be made therein without departing from the scope and spirit of this invention as defined by the appended claims.

What is claimed is:

l. A gage for checking the position of a part, mounted on the inner periphery of a cylindrical article, with respect to a given line radially of the centerline of the article, the gage comprising a bar, a chuck supporting the bar and actuable for mounting on the part and securing the bar in alignment with the part, a support mountable with its centerline coinciding with the centerline of the article, a carriage movable in a guided path on the support relative to the bar, an arm supported by the carriage and movable therewith in the guided path, and spaced gaging members carried by the arm to receive the bar therebetween if the part is within predetermined limits of the said given radial line.

2. A gage for checking the position of a part, mounted on the inner periphery of a cylindrical article, with respect to a given line radially of the centerline of the article, the gage comprising a bar, a chuck supporting the bar and ac-.

tuable for mounting on the part and securing the bar in alignment with the part, a support mountable with its centerline coinciding with the centerline of the article, a carriage movable in a guided path on the support relative to the bar, an arm supported by the carriage, movable therewith in the guided path and having a gaging surface, lying in a plane parallel with the said given radial line, to engage the bar, and means cooperating with the gaging surface and the bar to indicate whether or not the part is within predetermined limits of the said given radial line.

3. A gage for checking the position of a part, mounted on the inner periphery of a cylindrical article, with respect to a given line radially of the centerline of the article, the gage comprising a bar, a chuck supporting the bar and actuable for mounting on the part and securing the bar in alignment with the part, a support mountable with its centerline coinciding with the centerline of the article, a carriage movable in a guided path on the support relative to the bar, an arm supported by the carriage, movable therewith in the guided path and having a gaging surface, lying in a plane parallel with the said given radial line, to engage the bar, means cooperating with the gaging surface and the bar to indicate whether or not the part is within predetermined limits of the said given radial line in one direction, and spaced gaging members carried by the arm and extending at like angles from the gaging surface to receive the bar therebetween if the part is within predetermined limits of the said given radial line in another direction.

4. A gage for checking the positions of parts, mounted at spaced positions on the inner periphery of a cylindrical article, with respect to given lines radially of the centerline of the article and a reference plane parallel with the radial lines, the gage comprising, bars, individual chucks supporting the bars actuable for mounting on the parts and for securing the bars in alignment with their parts, a shaft mountable with its axis coinciding with the axis of the article, a carriage movable in a guided path on the shaft, and an arm supported by the carriage and having Number spaced sets of gaging members movable axially 1 696 525 of the shaft and the article into engagement with the bars to gage whether or not the parts 5 2431100 are within predetermined limits of the said given radial lines and the reference plane.

EARL C. MOSS.

Number REFERENCES CITED 10 144,466

The following references are of record in the file of this patent:

UNITED STATES PATENTS Name Date Coolidge Dec. 25, 1928 Wadell Dec. 30, 1930 Woods Nov. 18, 1947 FOREIGN PATENTS Country Date Great Britain June 17, 1920 

